Kim Shin a decorated military general from the Goryeo Dynasty is framed as a traitor and killed by his master, the young King. Years after his death, he is cursed by the almighty to stay immortal forever and endure the pain of seeing his loved ones die as a punishment to the beastly kills he committed in the wars to protect his country. He becomes an immortal goblin, helping people with his powers and being a kind man in-spite of his grieving past. The only way to put an end to his immortality is the Goblin's bride, whose aid in pulling out the sword will culminate his painful immortality. Ji Eun-Tak (Kim Go-eun) is a bubbly high school student who remains cheerful and hopeful despite her tragic life. She summons the goblin by chance and their fates begin to entwine. Goblin's nephew Yoo Deok-Hwa leases the Goblin's house to a grim reaper and the two end up living under the same roof. Sunny is a charismatic young lady who runs a chicken shop in which Ji Eun-Tak works as a part timer.
As the lives of Kim Shin, grim reaper, Ji Eun-Tak and Sunny interweave, a deeper story unfolds as they are not just strangers who met-by chance but people with deep-rooted relations.
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